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Simplifying 3X + (X + 2) = 158 Reorder the terms: 3X + (2 + X) = 158 Remove parenthesis around (2 + X) 3X + 2 + X = 158 Reorder the terms: 2 + 3X + X = 158 Combine like terms: 3X + X = 4X 2 + 4X = 158 Solving 2 + 4X = 158 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 4X = 158 + -2 Combine like terms: 2 + -2 = 0 0 + 4X = 158 + -2 4X = 158 + -2 Combine like terms: 158 + -2 = 156 4X = 156 Divide each side by '4'. X = 39 Simplifying X = 39
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